Added SEEK's ajax_helper.rb to help with converting link_to to Rails 3 style.
Fix for 'Adding an alternative name for service' using SEEK's link_to_with_callbacks on service's show page which was appearing as raw HTML.
Merge remote-tracking branch 'origin/rails3' into rails3

Conflicts:
	app/helpers/annotations_helper.rb
html_safe for aka's promote icon on services show page.